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Old 8th Jan 2021, 1:14 pm   #8
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,901
Default Re: Home made transformer

With 50Hz derived EHT, you can never easily get as many volts out of a transformer as you'd like, so you resort to Cockroft-Walton multipliers. At 50Hz, this means a number of high voltage, quite large capacitors. These are getting hard to find, many contain PCB type oils (liquid cancer someone called them) and they store fatal amounts of charge.

High frequency EHT generators (with only small capacitors needed) have a lot going for them.
Use of the flyback boost technique reduces the number of turns/volt dramatically as well

I built scopes with mains EHT when I was a kid. Somehow I survived.

David
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